Underbody Coating

DEFENITION OF UNDER BODY COATING:

Under body is a sprayable coating, which protects the under surface or bottom of the vehicle from the corrosion or rust.

PURPOSE OF THE UNDERBODY COATING:

It provides long term of protection from the corrosion to the car bottom surface. It also protects like internal body panels, frame rails and other inner holes or cavity that are not physically accessible but are reason to corrosion.

Under body coating is mainly important because it protect the corrosion from the rainy and wet seasons which the car contact with the water

UNDER BODY COATING PROTECT THE CAR FROM THESE FACTORS

Environmental Condition

Dampen sound and vibration

Impacts

Protects against corrosion

Seal off seams

Insulated against cold and heat

Hides welds, repair and bodywork with spray

Types of underbody coatings:

1.Rubberized Undercoating

2.Polyurethane Undercoating

3.Wax or Paraffin Based Undercoating

4.Asphalt-Based Undercoating

1.Rubberized Undercoating

• Rubberized Under body coating is easy to apply and offers sound cushioning as well as protection from dust, moisture, and dings or dents. In addtion under carriage runnerized undercoating in also safe to use on wheel wells and quarter panels and dries to a soft rubbery finish prevents frther rust damage or moisture.

2.Polyurethane Undercoating

• The other option for undercoating your vehicle is to use polyurethane based sealant, this type of vehicle undercoating is alittle bit quicker and easier to apply. Polyurethane undercoating will come in canister preload into an application gun. This type pf sealant works by seeping into all cracks and seams displacing salt and moisture and oozing around rusty areas to bond with and protect unoxidized metal. It also sands quickly in case you'll need to perform bodywork and can be painted over.

3.Wax or Paraffin Based Undercoating

• A paraffin based undercoating will be the cheapest and quickest option available with which to protect the under carriage of your vehicle, however, keep in mind that it will wear off quicker than other types of undercoating and will need to be stripped and reapplied at least once every year.

4.Asphalt-Based Undercoating

• In standard vehicle any of the aforementioned type undercoating will provide sufficient protection. For large trucks and heavy machinery, asphalt based undercoating provide bit of extra durability against rocks. Generally contains a little bit of rubberized materials. that sets up firmly and also helps soften noise. Sold in five gallon containers, this type of undercoating also needs more cure time than the other three and NOT paintable making.

Pros :-

• It minimizes the sound from underneath the car resulting a noiseless smooth driving experience.
• Heat Insulation will be good.
• It insulate the interior of the car from extreme temperature from beneath the vehicle providing comfortable cabin experience.
• If any stone hits the coating it does not get chipped away hence protects the underbody from exposure to water.

Cons :-

• Applying underbody coating will not have any effect to the already coated parts of the car.
• Undercoating is costly.
• Since the corrosion itself starts after few year underbody coating is not preferable to ower who change their after few year.